Lookup values from different company

public static void lookupInvoiceAsset(FormControl _formControl)
{
    SysTableLookUp          lookUp;
    Query                   q   = new Query();
    QueryBuildDataSource    qbds= q.addDataSource(tableNum(KMCollection));
    DataAreaId              masterCompany;
    
    //super(_formControl, _filterStr);
   
    if (!masterCompany)
    {
        masterCompany = curext();
    }
    
    q.allowCrossCompany(true);
    q.addCompanyRange(masterCompany);
    
    lookUp = SysTableLookUp::newParameters(tablenum(KMCOllection), _formControl);
    lookUp.parmQuery(q);
    lookup.addLookupfield(fieldnum(KMCOllection, kmCollectionId));
    lookup.addLookupfield(fieldnum(KMCOllection, description));
    lookup.addLookupfield(fieldnum(KMCOllection, kmCollectionTypeId));
    lookup.performFormLookup();
}